CN115595090A - EVA material, packaging adhesive film, and preparation method and application thereof - Google Patents
EVA material, packaging adhesive film, and preparation method and application thereof Download PDFInfo
- Publication number
- CN115595090A CN115595090A CN202211338866.4A CN202211338866A CN115595090A CN 115595090 A CN115595090 A CN 115595090A CN 202211338866 A CN202211338866 A CN 202211338866A CN 115595090 A CN115595090 A CN 115595090A
- Authority
- CN
- China
- Prior art keywords
- parts
- eva
- resin
- carbodiimide
- eva material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 239000000463 material Substances 0.000 title claims abstract description 112
- 239000002313 adhesive film Substances 0.000 title claims abstract description 35
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 153
- 239000011347 resin Substances 0.000 claims abstract description 153
- 239000011159 matrix material Substances 0.000 claims abstract description 47
- 239000003463 adsorbent Substances 0.000 claims abstract description 34
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- 230000000655 anti-hydrolysis Effects 0.000 claims abstract description 7
- 239000002270 dispersing agent Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims description 42
- XLDBGFGREOMWSL-UHFFFAOYSA-N n,n'-bis[2,6-di(propan-2-yl)phenyl]methanediimine Chemical compound CC(C)C1=CC=CC(C(C)C)=C1N=C=NC1=C(C(C)C)C=CC=C1C(C)C XLDBGFGREOMWSL-UHFFFAOYSA-N 0.000 claims description 33
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 28
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 28
- 239000000347 magnesium hydroxide Substances 0.000 claims description 28
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 28
- 239000002994 raw material Substances 0.000 claims description 28
- 239000000155 melt Substances 0.000 claims description 20
- -1 phthalate ester Chemical class 0.000 claims description 19
- 229910000166 zirconium phosphate Inorganic materials 0.000 claims description 17
- LEHFSLREWWMLPU-UHFFFAOYSA-B zirconium(4+);tetraphosphate Chemical compound [Zr+4].[Zr+4].[Zr+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LEHFSLREWWMLPU-UHFFFAOYSA-B 0.000 claims description 17
- 230000007062 hydrolysis Effects 0.000 claims description 14
- 238000006460 hydrolysis reaction Methods 0.000 claims description 14
- 150000001718 carbodiimides Chemical group 0.000 claims description 13
- 150000002500 ions Chemical class 0.000 claims description 12
- 239000007822 coupling agent Substances 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 8
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 claims description 8
- KDGNCLDCOVTOCS-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy propan-2-yl carbonate Chemical compound CC(C)OC(=O)OOC(C)(C)C KDGNCLDCOVTOCS-UHFFFAOYSA-N 0.000 claims description 6
- 125000000129 anionic group Chemical group 0.000 claims description 6
- 125000002091 cationic group Chemical group 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 3
- 229910052797 bismuth Inorganic materials 0.000 claims description 3
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 239000003431 cross linking reagent Substances 0.000 claims description 3
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 claims description 3
- MYOQALXKVOJACM-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy pentaneperoxoate Chemical compound CCCCC(=O)OOOC(C)(C)C MYOQALXKVOJACM-UHFFFAOYSA-N 0.000 claims description 2
- AGKBXKFWMQLFGZ-UHFFFAOYSA-N (4-methylbenzoyl) 4-methylbenzenecarboperoxoate Chemical compound C1=CC(C)=CC=C1C(=O)OOC(=O)C1=CC=C(C)C=C1 AGKBXKFWMQLFGZ-UHFFFAOYSA-N 0.000 claims description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- GTELLNMUWNJXMQ-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;prop-2-enoic acid Chemical class OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.CCC(CO)(CO)CO GTELLNMUWNJXMQ-UHFFFAOYSA-N 0.000 claims description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 2
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 claims description 2
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 claims description 2
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 2
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 claims description 2
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims description 2
- 229960001545 hydrotalcite Drugs 0.000 claims description 2
- 229910001701 hydrotalcite Inorganic materials 0.000 claims description 2
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000391 magnesium silicate Substances 0.000 claims description 2
- 229910052919 magnesium silicate Inorganic materials 0.000 claims description 2
- 235000019792 magnesium silicate Nutrition 0.000 claims description 2
- YDKNBNOOCSNPNS-UHFFFAOYSA-N methyl 1,3-benzoxazole-2-carboxylate Chemical compound C1=CC=C2OC(C(=O)OC)=NC2=C1 YDKNBNOOCSNPNS-UHFFFAOYSA-N 0.000 claims description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- GSECCTDWEGTEBD-UHFFFAOYSA-N tert-butylperoxycyclohexane Chemical compound CC(C)(C)OOC1CCCCC1 GSECCTDWEGTEBD-UHFFFAOYSA-N 0.000 claims description 2
- 239000004971 Cross linker Substances 0.000 claims 1
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 229920006280 packaging film Polymers 0.000 claims 1
- 239000012785 packaging film Substances 0.000 claims 1
- 238000002834 transmittance Methods 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000005022 packaging material Substances 0.000 abstract description 5
- 230000004069 differentiation Effects 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 151
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 151
- 238000002156 mixing Methods 0.000 description 16
- 238000005453 pelletization Methods 0.000 description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 7
- 150000001768 cations Chemical class 0.000 description 5
- 150000001450 anions Chemical class 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 239000008204 material by function Substances 0.000 description 3
- WPMYUUITDBHVQZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=CC(C(C)(C)C)=C1O WPMYUUITDBHVQZ-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 150000007945 N-acyl ureas Chemical class 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 150000001622 bismuth compounds Chemical class 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- KMBWMZQYDLDUQQ-UHFFFAOYSA-N n'-[2,6-di(propan-2-yl)phenyl]methanediimine Chemical class CC(C)C1=CC=CC(C(C)C)=C1N=C=N KMBWMZQYDLDUQQ-UHFFFAOYSA-N 0.000 description 1
- UHZVBFGPKDZMLV-UHFFFAOYSA-N n-butyl-n'-phenylmethanediimine Chemical compound CCCCN=C=NC1=CC=CC=C1 UHZVBFGPKDZMLV-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/08—Copolymers of ethene
- C09J123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C09J123/0853—Vinylacetate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/10—Adhesives in the form of films or foils without carriers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/328—Phosphates of heavy metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/206—Applications use in electrical or conductive gadgets use in coating or encapsulating of electronic parts
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/322—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of solar panels
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an EVA material, a packaging adhesive film, and a preparation method and application thereof. The EVA material comprises the following components in parts by weight of 100 parts: 60-80 parts of resin matrix, wherein the resin matrix comprises EVA resin; 3-18 parts of an ion adsorbent; 3-18 parts of an anti-hydrolysis agent; 1-5 parts of a dispersing agent. The EVA material disclosed by the invention is used in a packaging material, so that the light transmittance of the EVA material can be kept, the water vapor transmittance can be reduced, and the power attenuation rate of PID (proportion integration differentiation) can be reduced.
Description
Technical Field
The invention relates to an EVA material, a packaging adhesive film, and a preparation method and application thereof.
Background
Photovoltaic PID, potential induced degradation, generally refers to a phenomenon of a drop in power output of a battery assembly.
Chinese patent CN 108034372A discloses a preparation method of a photovoltaic packaging material EVA adhesive film resistant to potential induced degradation. The content of acetic acid is reduced by reducing the content of VA in EVA, and the melting temperature of EVA resin is increased, so that the migration capacity of sodium ions is weakened; in addition, the EVA adhesive film is added with a complex for absorbing sodium ions and high-melting-point polyethylene or ethylene copolymer, so that the PID resistance of the EVA is enhanced. However, the transparency of the EVA is reduced to a certain extent by reducing the content of VA in the EVA, and free acetate can also be used as a conductive ion to accelerate the corrosion of the battery. In addition, the addition of high melting point polyethylene or ethylene based copolymers to EVA requires consideration of compatibility issues between the two.
The Chinese invention patent CN 110093112A discloses an anti-corrosion photovoltaic packaging material EVA adhesive film and a preparation method thereof. According to the method, the modified corrosion-resistant auxiliary agent is added into the EVA adhesive film to adsorb acetic acid, so that the service life of the battery is prolonged. However, the EVA film has a general water vapor barrier ability and is easily hydrolyzed to generate a large amount of acetic acid.
Chinese patent CN113234402A (hereinafter referred to as D1) discloses a high-resistance PID composite packaging adhesive film and a preparation method thereof, which is characterized in that POE resin is mixed into EVA resin, and PID auxiliaries such as zirconium phosphate and monocarbodiimide are added, so that the power attenuation rate of the adhesive film is kept within 3%.
As can be seen from the above, in order to reduce the attenuation rate of PID in the prior art, other polymers are generally selected to replace EVA resin, (1) the raw material cost is increased, or the price cost for solving the compatibility between the two is increased; (2) the uniformity of the final product is affected. At present, the technical problem still needs to be solved.
Disclosure of Invention
In order to overcome the problems of power reduction, battery service life reduction and the like of a packaging assembly containing a large amount of EVA resin (ethylene-vinyl acetate copolymer) in the prior art, an EVA material, a packaging adhesive film, and a preparation method and application thereof are provided. The adhesive film prepared from the EVA material can keep better light transmittance, has better water vapor transmittance and lower PID power attenuation rate, thereby prolonging the service life of the battery.
The invention provides an EVA material, which comprises the following components in parts by weight of 100:
60-80 parts of a resin matrix, wherein the resin matrix comprises EVA resin;
3-18 parts of an ion adsorbent;
3-18 parts of an anti-hydrolysis agent;
1-5 parts of a dispersing agent.
In the present invention, the amount of the resin matrix is preferably 68 to 80 parts, more preferably 68 or 80 parts.
In the present invention, the resin matrix is preferably EVA resin.
In the invention, the resin matrix can also comprise POE resin; preferably, when the resin matrix further comprises POE resin, the mass part ratio of the POE resin to the EVA resin is 1 (0.1-10), for example 1.
In the present invention, preferably, the mass content of VA in the EVA resin is 20 to 30%, more preferably 20% or 28%, where the percentage is the mass percentage of VA in the total mass of the EVA resin; wherein VA is vinyl acetate.
In the present invention, the number average molecular weight of the EVA may be conventional in the art, preferably 1500 to 4000, more preferably 2000; generally, the number average molecular weight of EVA can be reasonably selected according to the product to be prepared.
In the present invention, the melt index of the EVA resin is preferably 20 to 25g/10min, more preferably 25g/10min.
In the present invention, the EVA resin may be V2825 of Span chemistry.
In the present invention, the ratio of the mass parts of the ionic adsorbent to the hydrolysis-resistant agent is preferably 1 (0.2 to 5), such as 1.
In the present invention, the amount of the ion adsorbent is preferably 3 to 15 parts, more preferably 3, 9 or 15 parts.
In the present invention, preferably, the ionic adsorbents include a cationic adsorbent, an anionic adsorbent, and an anionic and cationic adsorbent.
Wherein, preferably, the cation adsorbent comprises one or more of zirconium phosphate, magnesium silicate and aluminum silicate, and more preferably, the cation adsorbent is flake zirconium phosphate.
Wherein, preferably, the anion adsorbent comprises hydrotalcite and/or magnesium hydroxide, more preferably magnesium hydroxide.
Wherein, preferably, the anion and cation adsorbent is a compound containing bismuth element, more preferably Bi (OH) x (NO 3 ) y ·nH 2 O, wherein 2.5<x<3，0<y<0.5，x+y＝3。
In the present invention, the ion adsorbent may further include aluminum hydroxide.
In the present invention, the anti-hydrolysis agent is preferably used in an amount of 3 to 15 parts, more preferably 3, 9 or 15 parts.
In the present invention, the hydrolysis-resistant agent is preferably a carbodiimide hydrolysis-resistant agent, and more preferably a monomeric carbodiimide and/or a polymeric carbodiimide.
Wherein the monomeric carbodiimide can be an anti-hydrolysis agent commercially available from Shanghai Langyi functional materials, inc. with a model number of 1010; wherein the polymeric carbodiimide can be an anti-hydrolysis agent commercially available from Langyl functional materials, inc. of Shanghai, model 210 or 213; the polymerized monomer of the polymerized carbodiimide can be 1-phenyl-3-butylcarbodiimide, and the CAS number is 21848-95-3.
Wherein, preferably, the anti-hydrolysis agent is N, N' -bis (2, 6-diisopropylphenyl) carbodiimide.
In the present invention, the amount of the dispersant is preferably 2 to 10 parts, more preferably 2 parts.
In the present invention, preferably, the dispersant includes a silane coupling agent and/or a phthalate coupling agent.
In the present invention, preferably, the EVA material further includes a compatibilizer and/or a crosslinking agent.
Among them, preferably, the compatibilizer is one or more of acrylic acid, acrylamide, methyl methacrylate, ethylene-2-ethylhexyl acrylate copolymer, and glycidyl methacrylate.
Among them, preferably, the crosslinking agent is one or more of bis (4-methylbenzoyl) peroxide, 1 '-bis (t-butylperoxy) cyclohexane, butyl-4, 4' -bis (t-butylperoxy) valerate, propoxylated neopentyl glycol diacrylate, pentaerythritol triacrylate, trimethylolpropane triacrylate, and ethoxylated trimethylolpropane triacrylate.
In a preferred embodiment, the EVA material comprises the following components, based on 100 parts by weight: 80 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 9 parts of magnesium hydroxide; and 2 parts of a silane coupling agent.
In a preferred embodiment, the EVA material comprises the following components, based on 100 parts by weight: 80 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 9 parts of flaky zirconium phosphate; and 2 parts of a silane coupling agent.
In a preferred embodiment, the EVA material comprises the following components, based on 100 parts by weight: 80 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 15 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 3 parts of magnesium hydroxide; and 2 parts of a silane coupling agent.
In a preferred embodiment, the EVA material comprises the following components, based on 100 parts by weight: 80 parts of EVA resin, wherein the VA content is 28%; 3 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 15 parts of magnesium hydroxide; and 2 parts of a silane coupling agent.
In a preferred embodiment, the EVA material comprises the following components, based on 100 parts by weight: 68 parts of EVA resin, wherein the VA content is 28%; 15 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 15 parts of magnesium hydroxide; and 2 parts of a phthalate coupling agent.
In a preferred embodiment, the EVA material comprises the following components, based on 100 parts by weight: 68 parts of EVA resin, wherein the VA content is 28%; 15 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 15 parts of flaky zirconium phosphate; and 2 parts of a silane coupling agent.
In a preferred embodiment, the EVA material comprises the following components, based on 100 parts by weight: 80 parts of EVA resin, wherein the VA content is 28%; 9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; bi (OH) x (NO 3 ) y ·nH 2 O(2.5<x<3，0<y<0.5,x + y= 3) 9 parts; and 2 parts of a silane coupling agent.
In a preferred embodiment, the EVA material comprises the following components, based on 100 parts by weight: 80 parts of EVA resin, wherein the VA content is 28%; 9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 4.5 parts of magnesium hydroxide; 4.5 parts of flaky zirconium phosphate; and 2 parts of a silane coupling agent.
In a preferred embodiment, the EVA material comprises the following components, based on 100 parts by weight: 80 parts of EVA resin, wherein the VA content is 20%; 9 parts of polymeric carbodiimide; 9 parts of magnesium hydroxide; and 2 parts of a phthalate coupling agent.
In a preferred embodiment, the EVA material comprises the following components, based on 100 parts by weight: 80 parts of EVA resin, 40 parts of EVA resin in the resin matrix, 20 percent of VA and 40 parts of POE resin; 9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 9 parts of magnesium hydroxide; and 2 parts of a phthalate coupling agent.
In the invention, the hydrolysis resistant agent and the ion adsorbent are added simultaneously to generate a synergistic effect, so that carboxyl is changed into stable ureide, and ions generated by acetic acid corrosion on glass are captured, thereby greatly slowing down the degradation speed of EVA.
The invention also provides a preparation method of the EVA material, and the preparation method comprises the following steps: and (3) extruding and granulating the raw material mixture of the EVA material.
In the present invention, the extrusion may be carried out in an extruder conventional in the art.
Wherein, the temperature of the head of the extruder can be generally 90-140 ℃, preferably 90 ℃ or 140 ℃.
Wherein the melt pressure of the extruder may typically be 2.75MPa.
Wherein, the rotating speed of the screw of the extruder can be generally 200 to 290r/min, and preferably 250r/min.
In the present invention, the D50 particle size of the cut EVA material is preferably 3 to 5mm.
The invention also provides an EVA material prepared by the preparation method.
The invention also provides a packaging adhesive film which comprises the EVA material.
In the invention, in the packaging adhesive film, the content of the EVA material is greater than or equal to 2%, more preferably 2-100%, for example 2-10%, and the percentage is the percentage of the mass of the EVA material in the total mass of the packaging adhesive film.
In the present invention, preferably, the packaging adhesive film further includes an ester compound; more preferably, the ester compound is tert-butyl peroxyisopropyl carbonate and/or pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ]; more preferably, the content of the ester compound is 0.5-2%, and the percentage is the percentage of the ester compound in the total mass of the packaging adhesive film.
Wherein the CAS number of the tert-butyl peroxyisopropyl carbonate is 2372-21-6.
Wherein the CAS number of the tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester is 229-722-6.
In the present invention, the encapsulation adhesive film may further include a resin substrate, which may be conventionally understood in the art, and may be any resin substrate that can be suitably used for preparing the encapsulation adhesive film; preferably, the resin substrate comprises an EVA resin; preferably, the content of the resin base material is less than or equal to 97%, and more preferably 94-97%, where the percentage is the percentage of the resin base material in the total mass of the packaging adhesive film.
In the present invention, the D50 particle size of the EVA material is preferably 3 to 5mm. D50 is the median particle diameter as is conventional in the art.
In a preferred embodiment, the amount of the EVA material is 2 parts; the using amount of the resin matrix is 97 parts; the using amount of the tert-butyl peroxyisopropyl carbonate is 0.5 part; the using amount of the tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester is 0.5 part.
In the invention, the packaging adhesive film can be obtained by a conventional preparation method in the field, and the preparation method sequentially comprises the following steps: mixing, melt extrusion, casting film forming, cooling, slitting and rolling.
Wherein the mixed material may include: EVA material, ester compound and resin substrate.
The invention also provides an application of the EVA material in a photovoltaic double-glass assembly packaging adhesive film. Which can greatly improve the service life of the solar cell.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The reagents and starting materials used in the present invention are commercially available.
The positive progress effects of the invention are as follows:
when the EVA material is used in a packaging material, the light transmittance of the EVA material can be maintained, the water vapor transmittance can be reduced, the PID power attenuation rate can be reduced, and the service life of a battery can be prolonged.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention. The experimental methods without specifying specific conditions in the following examples were selected according to the conventional methods and conditions, or according to the commercial instructions.
The EVA resin used in the following examples was V2825 by Span chemistry, and had a melt index of 25g/10min.
The monomeric carbodiimides used in the following examples are 1010N, N' -bis (2, 6-diisopropylphenyl) carbodiimides, commercially available from Langyl functional materials, inc., shanghai;
the flaky zirconium phosphate used in the following examples is a nano-flaky zirconium phosphate obtained from Shanghai Langyi functional materials Co., ltd., a crystal size of only 300-500nm under a scanning electron microscope, and D99 < 6 μm when analyzed by a laser particle size analyzer.
Example 1
The EVA material comprises the following components in parts by weight of 100 parts:
80 parts of a resin matrix; the resin matrix is EVA resin, the content of VA is 28%, and the percentage is the percentage of the mass of VA in the total mass of the EVA resin;
9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
9 parts of magnesium hydroxide;
2 parts of a silane coupling agent;
uniformly mixing the raw material composition of the EVA material, feeding the mixture into an extruder at a feeding speed of 20-25kg/h, extruding, and then pelletizing to obtain the EVA material with the grain size of 3-5 mm. Wherein the temperature of the head of the extruder is 90 ℃; the melt pressure of the extruder is 2.75MPa; the rotation speed of the screw of the extruder was 250r/min.
Example 2
The EVA material comprises the following components in parts by weight of 100 parts:
80 parts of a resin matrix; the resin matrix is EVA resin, the content of VA is 28%, and the percentage is the percentage of the mass of VA in the total mass of the EVA resin;
9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
9 parts of flaky zirconium phosphate;
2 parts of a silane coupling agent;
uniformly mixing the raw material composition of the EVA material, feeding the mixture into an extruder at a feeding speed of 20-25kg/h, extruding, and then pelletizing to obtain the EVA material with the grain size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder is 2.75MPa; the rotation speed of the screw of the extruder was 250r/min.
Example 3
The EVA material comprises the following components in parts by weight of 100 parts:
80 parts of a resin matrix; the resin matrix is EVA resin, the VA content is 28%, and the percentage is the percentage of the mass of the VA in the total mass of the EVA resin;
15 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
3 parts of magnesium hydroxide;
2 parts of a silane coupling agent;
uniformly mixing the raw material composition of the EVA material, feeding the mixture into an extruder at a feeding speed of 20-25kg/h, extruding, and then pelletizing to obtain the EVA material with the grain size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder is 2.75MPa; the rotation speed of the screw of the extruder was 250r/min.
Example 4
The EVA material comprises the following components in parts by weight of 100 parts:
80 parts of a resin matrix; the resin matrix is EVA resin, the content of VA is 28%, and the percentage is the percentage of the mass of VA in the total mass of the EVA resin;
3 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
15 parts of magnesium hydroxide;
2 parts of a silane coupling agent;
uniformly mixing the raw material composition of the EVA material, feeding the mixture into an extruder at a feeding speed of 20-25kg/h, extruding, and then pelletizing to obtain the EVA material with the grain size of 3-5 mm. Wherein the temperature of the extruder head is 140 ℃; the melt pressure of the extruder was 2.75MPa; the rotation speed of the screw of the extruder was 250r/min.
Example 5
The EVA material comprises the following components in parts by weight of 100 parts:
68 parts of a resin matrix; the resin matrix is EVA resin, the content of VA is 28%, and the percentage is the percentage of the mass of VA in the total mass of the EVA resin;
15 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
15 parts of magnesium hydroxide;
2 parts of phthalate ester coupling agent;
uniformly mixing the raw material composition of the EVA material, feeding the mixture into an extruder at a feeding speed of 20-25kg/h, extruding, and then pelletizing to obtain the EVA material with the grain size of 3-5 mm. Wherein the temperature of the extruder head is 140 ℃; the melt pressure of the extruder was 2.75MPa; the rotation speed of the screw of the extruder was 250r/min.
Example 6
The EVA material comprises the following components in parts by weight of 100 parts:
68 parts of a resin matrix; the resin matrix is EVA resin, the VA content is 28%, and the percentage is the percentage of the mass of the VA in the total mass of the EVA resin;
15 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
15 parts of flaky zirconium phosphate;
2 parts of a silane coupling agent;
uniformly mixing the raw material composition of the EVA material, feeding the mixture into an extruder at a feeding speed of 20-25kg/h, extruding, and then pelletizing to obtain the EVA material with the grain size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder is 2.75MPa; the rotation speed of the screw of the extruder was 250r/min.
Example 7
The EVA material comprises the following components in parts by weight of 100 parts:
80 parts of a resin matrix; the resin matrix is EVA resin, the content of VA is 28%, and the percentage is the percentage of the mass of VA in the total mass of the EVA resin;
9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
Bi(OH) x (NO 3 ) y ·nH 2 O(2.5<x<3，0<y<0.5,x + y = 3) 9 parts;
2 parts of a silane coupling agent;
uniformly mixing the raw material composition of the EVA material, feeding the mixture into an extruder at a feeding speed of 20-25kg/h, extruding, and then pelletizing to obtain the EVA material with the grain size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder is 2.75MPa; the rotation speed of the screw of the extruder was 250r/min.
Example 8
The EVA material comprises the following components in parts by weight of 100 parts:
80 parts of a resin matrix; the resin matrix is EVA resin, the content of VA is 28%, and the percentage is the percentage of the mass of VA in the total mass of the EVA resin;
9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
4.5 parts of magnesium hydroxide;
4.5 parts of flaky zirconium phosphate;
2 parts of a silane coupling agent;
uniformly mixing the raw material composition of the EVA material, feeding the mixture into an extruder at a feeding speed of 20-25kg/h, extruding, and then pelletizing to obtain the EVA material with the grain size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder is 2.75MPa; the rotation speed of the screw of the extruder was 250r/min.
Example 9
The EVA material comprises the following components in parts by weight of 100 parts:
80 parts of a resin matrix; the resin matrix is EVA resin, the content of VA is 20%, and the percentage is the percentage of the mass of VA in the total mass of the EVA resin;
9 parts of polymeric carbodiimide;
9 parts of magnesium hydroxide;
2 parts of phthalate ester coupling agent;
uniformly mixing the raw material composition of the EVA material, feeding the mixture into an extruder at a feeding speed of 20-25kg/h, extruding, and then pelletizing to obtain the EVA material with the grain size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder is 2.75MPa; the rotation speed of the screw of the extruder was 250r/min.
Example 10
The EVA material comprises the following components in parts by weight of 100 parts:
80 parts of a resin matrix; the resin matrix comprises 40 parts of EVA resin and 40 parts of POE resin, the content of VA is 28%, and the percentage is the mass of VA accounting for the total mass of the EVA resin;
9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
9 parts of magnesium hydroxide;
2 parts of a phthalate coupling agent;
uniformly mixing the raw material composition of the EVA material, feeding the mixture into an extruder at a feeding speed of 20-25kg/h, extruding, and then pelletizing to obtain the EVA material with the grain size of 3-5 mm. Wherein the temperature of the extruder head is 140 ℃; the melt pressure of the extruder was 2.75MPa; the rotation speed of the screw of the extruder was 250r/min.
Comparative example 1
The EVA material comprises the following components in parts by weight of 100 parts:
83 parts of a resin matrix; the resin matrix is EVA resin;
15 parts of flaky zirconium phosphate;
2 parts of a silane coupling agent;
uniformly mixing the raw material composition of the EVA material, feeding the mixture into an extruder at a feeding speed of 20-25kg/h, extruding, and then pelletizing to obtain the EVA material with the grain size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder is 2.75MPa; the rotation speed of the screw of the extruder was 250r/min.
Comparative example 2
The EVA material comprises the following components in parts by weight of 100 parts:
83 parts of a resin matrix; the resin matrix is EVA resin;
15 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
2 parts of a silane coupling agent;
uniformly mixing the raw material composition of the EVA material, feeding the mixture into an extruder at a feeding speed of 20-25kg/h, extruding, and then pelletizing to obtain the EVA material with the grain size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder is 2.75MPa; the rotation speed of the screw of the extruder was 250r/min.
Comparative example 3
The EVA material raw material composition comprises the following components in parts by weight:
90 parts of a resin matrix; the resin matrix is EVA resin;
5 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
3 parts of magnesium hydroxide;
2 parts of a silane coupling agent;
uniformly mixing the raw material composition of the EVA material, feeding the mixture into an extruder at a feeding speed of 20-25kg/h, extruding, and then pelletizing to obtain the EVA material with the grain size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder is 2.75MPa; the rotation speed of the screw of the extruder was 250r/min.
As the content of the EVA resin in the raw material composition of the EVA material is too high, the content of the additive in the raw material composition is reduced, so that the hydrolysis resistance of the raw material composition is reduced, and the PID attenuation is accelerated.
Comparative example 4
The EVA material raw material composition comprises the following components in parts by weight:
78 parts of a resin matrix; the resin matrix is EVA resin;
1 part of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
20 parts of magnesium hydroxide;
1 part of a silane coupling agent;
uniformly mixing the raw material composition of the EVA material, feeding the mixture into an extruder at a feeding speed of 20-25kg/h, extruding, and granulating to obtain the EVA material with the particle size of 3-5 mm. Wherein the temperature of the extruder head is 140 ℃; the melt pressure of the extruder is 2.75MPa; the rotation speed of the screw of the extruder was 250r/min.
Due to the fact that the content of the ionic adsorbent in the raw material composition of the EVA material is too high, the content of the hydrolysis resistant agent in the raw material composition is reduced, so that the hydrolysis resistance of the raw material composition is reduced, and PID attenuation is accelerated.
Comparative example 5
The EVA material raw material composition comprises the following components in parts by weight:
70 parts of a resin matrix; the resin matrix is EVA resin;
20 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
8 parts of magnesium hydroxide;
2 parts of a silane coupling agent;
uniformly mixing the raw material composition of the EVA material, feeding the mixture into an extruder at a feeding speed of 20-25kg/h, extruding, and granulating to obtain the EVA material with the particle size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder is 2.75MPa; the rotation speed of the screw of the extruder was 250r/min.
Due to the hydrolysis resistance agent or the ion adsorbent, performance problems such as deterioration of transparency are caused.
Example 12
The packaging adhesive film consists of the following substances, and the using amount of the EVA material prepared in the examples 1-10 and the comparative examples 1-5 is 2 parts; the resin matrix is EVA resin, and the dosage of the EVA resin is 97 parts; the using amount of the tert-butyl peroxyisopropyl carbonate is 0.5 part; the amount of pentaerythrityl tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] was 0.5 part. The raw materials of the packaging adhesive film are subjected to processes of premixing, melt extrusion, casting film forming, cooling, slitting, rolling and the like to prepare the packaging adhesive film, and the light transmittance, the water vapor transmittance and the power attenuation rate of the adhesive film are tested.
Cutting the rolled adhesive film into the size same as that of a solar photovoltaic component, stacking according to the structural sequence of glass/anti-PID ethylene vinyl acetate adhesive film/battery piece/common EVA film/back plate, vacuumizing and laminating at 145 ℃, wherein the vacuumizing time is 5 minutes, the laminating time is 12 minutes, and carrying out PID experiment on the obtained laminated piece. The photovoltaic module PID test is carried out according to IEC TS 62804-1:2015, adding a constant direct current voltage of minus 1500V under 85 ℃ RH under the test conditions, and measuring the power attenuation before and after PID test of the photovoltaic module after 192h to obtain the test results of the packaging material in Table 2.
TABLE 2
According to the data in table 2, the EVA material with lower water vapor transmission rate and power attenuation rate less than 3% can be obtained by the mutual matching of the ion adsorbent with specific dosage and the hydrolysis-resistant agent, and the qualified standard is reached. The POE resin which is expensive and not compatible with the EVA resin can be not used, and the lower power attenuation rate can be obtained.
Several ion adsorbents listed in examples 1 to 10 can achieve the effects of the present application. Among them, compounds containing bismuth (Bi (OH) are preferred to other ion adsorbents x (NO 3 ) y ·nH 2 O(2.5<x<3，0<y<0.5,x + y=3) as an ionic adsorbent, it has little effect on the transparency of EVA; the bismuth compound can absorb anions and cations simultaneously, and the effect is equivalent to that of a mixture of anion adsorbent and cation adsorbent with the same content.
The synergistic effect of the hydrolysis resistance agent and the adsorbent in examples 5 and 6 is far superior to that of the addition of a single kind of additive, compared to comparative examples 1 and 2, which are inferior in both the water vapor transmission rate and the power decay rate.
Claims (10)
1. The EVA material is characterized by comprising the following components in parts by weight based on 100 parts by weight:
60-80 parts of a resin matrix, wherein the resin matrix comprises EVA resin;
3-18 parts of an ion adsorbent;
3-18 parts of an anti-hydrolysis agent;
1-5 parts of a dispersing agent.
2. The EVA material of claim 1 wherein the resin matrix is used in an amount of 68 to 80 parts, preferably 68 or 80 parts;
and/or the resin matrix is EVA resin;
and/or, the resin matrix further comprises POE resin; preferably, when the resin matrix further comprises POE resin, the mass part ratio of the POE resin to the EVA resin is 1 (0.1-10), for example 1;
and/or the mass content of VA in the EVA resin is 20-30%, preferably 20% or 28%, and the percentage is the mass percentage of the VA in the total mass of the EVA resin;
and/or the EVA resin has a number average molecular weight of 1500-4000, preferably 2000;
and/or the melt index of the EVA resin is 20-25 g/10min, preferably 25g/10min;
and/or the mass part ratio of the ion adsorbent to the hydrolysis resistant agent is 1 (0.2-5), preferably 1.
3. The EVA material of claim 1, characterised in that the ionic adsorbent is used in an amount of 3 to 15 parts, preferably 3, 9 or 15 parts;
and/or the ionic adsorbent comprises a cationic adsorbent, an anionic adsorbent and an anionic and cationic adsorbent; wherein the content of the first and second substances,
preferably, the cationic adsorbent comprises one or more of zirconium phosphate, magnesium silicate and aluminum silicate, more preferably zirconium phosphate in the form of flakes;
preferably, the anionic adsorbent comprises hydrotalcite and/or magnesium hydroxide, more preferably magnesium hydroxide;
preferably, the cationic and anionic adsorbent comprises a compound comprising bismuth, more preferably Bi (OH) x (NO 3 ) y ·nH 2 O, wherein 2.5<x<3，0<y<0.5，x+y＝3；
Preferably, the ionic adsorbent comprises aluminum hydroxide.
4. The EVA material of claim 1, characterised in that the hydrolysis resistance agent is used in an amount of 3 to 15 parts, preferably 3, 9 or 15 parts;
and/or the hydrolysis resistant agent is a carbodiimide type hydrolysis resistant agent, preferably a monomeric carbodiimide and/or a polymeric carbodiimide, more preferably N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
and/or the dosage of the dispersant is 2 to 10 parts, preferably 2 parts;
and/or the dispersant comprises a silane coupling agent and/or a phthalate coupling agent.
5. The EVA material of claim 1 further comprising a compatibilizer and/or crosslinker;
preferably, the compatilizer is one or more of acrylic acid, acrylamide, methyl methacrylate, ethylene-2-ethylhexyl acrylate copolymer and glycidyl methacrylate;
preferably, the crosslinking agent is one or more of bis (4-methylbenzoyl) peroxide, 1 '-bis (t-butylperoxy) cyclohexane, butyl-4, 4' -bis (t-butylperoxy) valerate, propoxylated neopentyl glycol diacrylate, pentaerythritol triacrylate, trimethylolpropane triacrylate, and ethoxylated trimethylolpropane triacrylate.
6. The EVA material of claim 1, comprising the following components, based on 100 parts by weight: 80 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 9 parts of magnesium hydroxide; 2 parts of a silane coupling agent;
or, the EVA material comprises the following components by taking the total weight as 100 parts: 80 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 9 parts of flaky zirconium phosphate; 2 parts of a silane coupling agent;
or, the EVA material comprises the following components by taking the total weight as 100 parts: 80 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 15 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 3 parts of magnesium hydroxide; 2 parts of a silane coupling agent;
or, based on 100 parts of total weight, the EVA material comprises the following components: 80 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 3 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 15 parts of magnesium hydroxide; 2 parts of a silane coupling agent;
or, the EVA material comprises the following components by taking the total weight as 100 parts: 68 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 15 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 15 parts of magnesium hydroxide; 2 parts of phthalate ester coupling agent;
or, based on 100 parts of total weight, the EVA material comprises the following components: 68 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 15 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 15 parts of flaky zirconium phosphate; 2 parts of a silane coupling agent;
or, based on 100 parts of total weight, the EVA material comprises the following components: 80 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; bi (OH) x (NO 3 ) y ·nH 2 O(2.5<x<3，0<y<0.5,x + y = 3) 9 parts; 2 parts of a silane coupling agent;
or, the EVA material comprises the following components by taking the total weight as 100 parts: 80 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 4.5 parts of magnesium hydroxide; 4.5 parts of flaky zirconium phosphate; 2 parts of a silane coupling agent;
or, based on 100 parts of total weight, the EVA material comprises the following components: 80 parts of EVA resin, wherein the mass content of VA in the EVA resin is 20%; 9 parts of polymeric carbodiimide; 9 parts of magnesium hydroxide; 2 parts of a phthalate coupling agent;
or, based on 100 parts of total weight, the EVA material comprises the following components: 40 parts of EVA resin and 40 parts of POE resin, wherein the mass content of VA in the EVA resin is 20%; 9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 9 parts of magnesium hydroxide; and 2 parts of a phthalate coupling agent.
7. The preparation method of the EVA material is characterized by comprising the following steps: extruding and dicing a raw material mixture of the EVA material of any one of claims 1-5;
preferably, the extrusion is carried out in an extruder; more preferably, the temperature of the head of the extruder is 90-140 ℃, and further more preferably 90 ℃ or 140 ℃; more preferably, the melt pressure of the extruder is 2.75MPa; more preferably, the rotating speed of the screw of the extruder is 200-290 r/min, and even more preferably 250r/min;
preferably, the D50 particle size of the cut EVA material is 3-5 mm.
8. An EVA material produced by the production method according to claim 7.
9. An adhesive packaging film comprising the EVA material of any one of claims 1 to 6 or 8;
preferably, in the packaging adhesive film, the content of the EVA material is greater than or equal to 2%, more preferably 2 to 100%, for example 2 to 10%, where the percentage is the percentage of the mass of the EVA material in the total mass of the packaging adhesive film;
preferably, the packaging adhesive film further comprises an ester compound; more preferably, the ester compound is tert-butyl peroxyisopropyl carbonate and/or pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ]; more preferably, the content of the ester compound is 0.5-2%, and the percentage is the percentage of the ester compound in the total mass of the packaging adhesive film;
preferably, the packaging adhesive film further comprises a resin substrate; more preferably, the resin substrate comprises an EVA resin; more preferably, the content of the resin base material is less than or equal to 97%, and more preferably 94-97%, wherein the percentage is the percentage of the resin base material in the total mass of the packaging adhesive film;
preferably, the D50 particle size of the EVA material is 3-5 mm.
10. The application of the EVA material of any one of claims 1-6 or 8 in a photovoltaic dual-glass assembly packaging adhesive film.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102775924A (en) * | 2012-07-09 | 2012-11-14 | 苏州爱康光伏新材料有限公司 | Hydrolysis-resistant solar packaging EVA (ethylene-vinyl acetate) film, and preparation method and use method thereof |
| CN112920722A (en) * | 2021-03-31 | 2021-06-08 | 苏州赛伍应用技术股份有限公司 | Water-blocking packaging adhesive film and preparation method thereof |
| CN113234402A (en) * | 2021-05-07 | 2021-08-10 | 浙江祥邦科技股份有限公司 | High-resistance PID composite packaging adhesive film and preparation method thereof |
| CN114806460A (en) * | 2022-06-29 | 2022-07-29 | 江苏鹿山新材料有限公司 | Low-acid type white EVA photovoltaic packaging adhesive film and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102775924A (en) * | 2012-07-09 | 2012-11-14 | 苏州爱康光伏新材料有限公司 | Hydrolysis-resistant solar packaging EVA (ethylene-vinyl acetate) film, and preparation method and use method thereof |
| CN112920722A (en) * | 2021-03-31 | 2021-06-08 | 苏州赛伍应用技术股份有限公司 | Water-blocking packaging adhesive film and preparation method thereof |
| CN113234402A (en) * | 2021-05-07 | 2021-08-10 | 浙江祥邦科技股份有限公司 | High-resistance PID composite packaging adhesive film and preparation method thereof |
| CN114806460A (en) * | 2022-06-29 | 2022-07-29 | 江苏鹿山新材料有限公司 | Low-acid type white EVA photovoltaic packaging adhesive film and preparation method thereof |
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